Seiko Cal. 6650 - 308

This Spring Drive model from 1974 features a 37mm Gold-Plated case. Powered by the 6650 caliber with 31j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-ba3d0d442db9]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1974

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